With a supercharged 5.2-liter V8 producing 760 horsepower and 625 lb-ft of torque, the 2020 Ford Mustang Shelby GT500 is certainly no slouch. That makes it the most powerful street-legal car Ford has ever produced, and yet a recent trip to the dyno revealed it could be packing even more power than what Ford claims.

Its impressive specifications enter supercar territory: 0-62 mph takes around 3.5 seconds before the GT500 hits a top speed of 180 mph. Excited buyers are now getting their hands on Ford's new performance machine. Inevitably, it hasn't taken long for tuning companies to extract even more power out of the GT500.

Tuning shop Evolution Performance received one of the first GT500s to leave the factory and wasted no time making some serious modifications. Among the upgrades installed include a ported supercharger, an upgraded pulley, larger fuel injectors and a bigger fuel pump, an X-pipe, and 20-inch drag radials that make the GT500 look even more aggressive. Extra chassis bracing also helps the GT500 cope with all that extra muscle.

As a result of these modifications, the tuned Shelby GT500 now produces 945 horsepower at the wheels, which means it has over 1,000 hp at the crank. Giddy up.

In stock form, the Ford claims the new Shelby GT500 will do the quarter-mile in less than 11 seconds. This 1,000+ hp GT500 did it in 9.93-second quarter-mile at 140 mph, as shown in a video posted by REVan Evan.

According to the video, this makes it the first 2020 Shelby GT500 to clock the quarter-mile in under ten seconds. The driver's reactions also seemed slow, so it potentially could have set an even faster time. This isn't the first tuner to extract more power from the GT500, and it won't be the last. Hennessey Performance, for example, is already working its magic to increase the Shelby GT500's output to 1,200 horsepower.